SignalClock Lite vs Decima
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SignalClock Lite
This utility app displays a digital clock with a time signal function using local notifications. It offers multiple sound sets and font options. The free version has limitations on scheduling time signals to half-hour intervals.
- Local notification time signals
- Multiple sound sets
- iOS 10 font support
- Half-hour signal scheduling (free edition)
- Digital clock display
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Digital clock has time signal function based on Local Notification Center. It’s free edition of “SignalClock”. 5 different signal sound sets. All fonts iOS 10 supports are available in clock. 5 tone type are available in all sound file sets. Free edition limitations : - Able to schedule time signals on half hour unit ex. 00:00, 00:30, 01:00 ...
Decima
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The application you have before you is but a small attempt at working with time. Since it's a precious commodity all we can do is spend it wisely. That's why I've decided to spend a bit of my time and create Decima (named after Roman Parca, the female personification of destiny) so that you don't have to ;) So what you can do with Decima? In the current version 1.1 (Joséphine) you can: • create multiple timers • set multiple alerts per timer to track time expenditure • use it on both: your iPhone and Apple Watch (iPhone application is necessary) • start/stop timers on demand from your iPhone/iPad or Apple Watch • organize your time in sets • see total/partial time spent for a particular timer • automatically synchronise data between your iPhone and your Apple Watch (timer started on your phone can be paused on your Apple Watch and vice-versa) Have fun. Catch me at krzyspmac@twitter or contact (at) krzysp.net
Screenshots
Verdict
The clearest difference is in-app purchases: SignalClock Lite at none against Decima's 1. SignalClock Lite also leads on iOS requirement (12.0 vs 17.0). Decima's advantage is update cadence (every 2 months vs every 7 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Decima sells 1 one-off in-app purchase. SignalClock Lite asks for nothing beyond the download.
SignalClock Lite ships an update every 7 months, Decima every 2 months. The most recent releases landed on September 9, 2026 and September 25, 2026 respectively.
| Parameter | SignalClock Lite | Decima |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Masafumi Endoh | Krzysztof Pawlowski |
In-app purchases
SignalClock Lite
No in-app purchases
Decima
- The Manipulator$0.99
Questions
Is SignalClock Lite free?
Is Decima free?
Do SignalClock Lite or Decima have ads?
Which is updated more often, SignalClock Lite or Decima?
Other comparisons
